NASA Astronaut Ricky Arnold (@astro_ricky) — Astronaut (STS-119, Expedition 55/56, NEEMO 13, #CAVES2016)  & Educator. Currently onboard the @ISS  for Expeditions 55 and 56. Posts are my own.
The majestic and storied Nile River delta at night. Fishing boats in the Mediter
23.04.2018 22:38:30
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The majestic and storied Nile River delta at night. Fishing boats in the Mediterranean are visible just off shore.
The mighty Nile and its delta – a ribbon of green in an otherwise arid landscape
23.04.2018 17:24:57
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The mighty Nile and its delta – a ribbon of green in an otherwise arid landscape. #TheStoryofWater
These coral atolls, seemingly adrift in the blue of the Indian Ocean, are a part
22.04.2018 15:28:00
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These coral atolls, seemingly adrift in the blue of the Indian Ocean, are a part of the #Maldives. Formed by reef-building organisms, atolls are one of our most at-risk places from rising seas. #EarthDay - we are all connected and we are all in this together.
Winter’s web still ensnares parts of Oregon.
21.04.2018 22:31:50
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Winter’s web still ensnares parts of Oregon....more
Pizza night on @iss!
20.04.2018 23:43:41
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Pizza night on @iss!...more
The interplay of ice, sea and clouds near Nova Scotia, Prince Edward Island, and
20.04.2018 15:43:51
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The interplay of ice, sea and clouds near Nova Scotia, Prince Edward Island, and New Brunswick! A warm “hello” to my long-lost cousins in New Brunswick and Cassidy Megan (who started #PurpleDay) in Nova Scotia!
The volcanic Cape Verde Islands off the west coast of Africa leave a wake as the
19.04.2018 20:56:13
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The volcanic Cape Verde Islands off the west coast of Africa leave a wake as the air and sea flow over and around them.
The Enchanted Islands of #Ecuador – the Galápagos.
17.04.2018 17:53:25
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The Enchanted Islands of #Ecuador – the Galápagos....more
“San Francisco has only one drawback—‘tis hard to leave.”~Rudyard Kipling
The en
16.04.2018 15:42:49
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“San Francisco has only one drawback—‘tis hard to leave.”~Rudyard Kipling The entire Golden State of California was visible on a magnificent transit. It receded from view far too quickly.
Namibia – where the desert meets the sea.
13.04.2018 14:40:15
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Namibia – where the desert meets the sea....more
Cape Cod, MA. I once briefly worked at Cape Cod NPS, USA’s 2nd National Seashore
10.04.2018 15:16:50
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Cape Cod, MA. I once briefly worked at Cape Cod NPS, USA’s 2nd National Seashore and the setting of Henry Beston’s “The Outermost House”. Our national seashores are a treasure shared by all.
Sunrise crashes an aurora party over the southern hemisphere.
09.04.2018 21:45:47
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Sunrise crashes an aurora party over the southern hemisphere....more
“Florida thrusts like a guiding thumb. To the southern islands of rumba and rum.
08.04.2018 19:36:15
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“Florida thrusts like a guiding thumb. To the southern islands of rumba and rum." - Don Blanding
Check out @NASA Education's new STEMonstration: Kinetic & Potential Energy! If y
05.04.2018 14:50:11
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Check out @NASA Education's new STEMonstration: Kinetic & Potential Energy! If you’re looking for a fresh way to teach this difficult concept, this short video – along w/ Classroom Connections – is the perfect grab-and-go resource. nasa.gov/stemonstrations #TeacherOnBoard#STEMonStation
Welcome @spacex 14 – packed with science and hopefully a few goodies for us too!
04.04.2018 14:57:37
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Welcome @spacex 14 – packed with science and hopefully a few goodies for us too!...more
The Sea of Galilee on Easter Monday.
02.04.2018 17:40:52
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The Sea of Galilee on Easter Monday....more
G’day Australia and New Guinea.
02.04.2018 14:28:30
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G’day Australia and New Guinea....more
My view of @astro_feustel and all of you.
30.03.2018 18:52:35
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My view of @astro_feustel and all of you....more
@SimplyAJ10 – we could see that one from up here! #OpeningDay
30.03.2018 18:28:42
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@SimplyAJ10 – we could see that one from up here! #OpeningDay...more
Selamat pagi Indonesia – a place I once called home. Java, Bali, & Lombok all li
30.03.2018 14:01:36
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Selamat pagi Indonesia – a place I once called home. Java, Bali, & Lombok all lined up neatly in a row. The narrow straits between Bali and Lombok are known as the Wallace Line. Alfred Russel Wallace formulated his own theory of evolution based on his time on these islands.
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